Their capacity to double is much quicker than BTC and as they're traded in BTC they take advantage of BTC rise plus the rise of their own traded price.

There is certainly an opportunity for short term profits in alts, but I don't believe there is much of a fundamental case to be made for them. At best I expect one or two alts surviving as some kind of Bitcoin mixer, but that's not enough to risk losing any BTC over them.

Their capacity to double is much quicker than BTC and as they're traded in BTC they take advantage of BTC rise plus the rise of their own traded price.

There is certainly an opportunity for short term profits in alts, but I don't believe there is much of a fundamental case to be made for them. At best I expect one or two alts surviving as some kind of Bitcoin mixer, but that's not enough to risk losing any BTC over them.

Pretty much.

I have some NMC left over from Slush's pool. They actually have some usefulness distinct from BTC. And as a mixer... yes.